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Hi. I have a Chev Captiva ltz 2010. I have had this problem for a while where the car engine power/acceleration has a loss of power. Specially going up any sort of hill. It won’t accelerate past second gear and gets stuck on 3000 revs. Sometimes driving both the traction control lights on the dashboard come on and car loses even more power and everytime changing gear it won’t accelerate properly. Turning car off and back on makes it work again however it will not go last 3k revs. Diagnostic check has come with the code co561. Which I believe is abs/traction fault code? Anyone else advice on this or experienced this? In the UK and doesn’t seem to be many experienced chev mechanics who can find the problem. Any advice to say to the mechanic what the exact problem could be? Thank you.
 

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This is a well discussed Topic. The Forum Search function will provide previous Topic discussions. (Go to three white dots top right>select advanced search>complete requested data (leave member name blank). Search results for query: C0561

The cause is usually incomplete signal from EBCM "Code C0561 comes in two forms. ... In the case of this GM code, the electronic brake control module (EBCM) is what disables the traction control system or the vehicle stability enhancement system. The code means the EBCM is receiving faulty data from other modules or is faulty itself. "

The commonest cause is a defective ABS sensor or a corroded connector to the ABS sensor. This results in incomplete safety signals. Hence the vehicle reduces power output so as to provide 'safety'. First port of call is to check your ABS sensors and the connector blocks (how to do this using a multimeter can be found using the Forum Advanced Search function and read the topic entries). Start by checking the front nearside - this is the most problematic with UK RH drive vehicles due to water throw up from gutters.

There is the outside chance that on an older vehicle one of the reluctor rings may have become damaged through rusting (especially on the front wheel(s).
This is also discussed on the Forum which can be located using the Search Function. Dont go the reluctor ring route until ABS sensors are totally ruled out.
 
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This is a well discussed Topic. The Forum Search function will provide previous Topic discussions. (Go to three white dots top right>select advanced search>complete requested data (leave member name blank). Search results for query: C0561

The cause is usually incomplete signal from EBCM "Code C0561 comes in two forms. ... In the case of this GM code, the electronic brake control module (EBCM) is what disables the traction control system or the vehicle stability enhancement system. The code means the EBCM is receiving faulty data from other modules or is faulty itself. "

The commonest cause is a defective ABS sensor or a corroded connector to the ABS sensor. This results in incomplete safety signals. Hence the vehicle reduces power output so as to provide 'safety'. First port of call is to check your ABS sensors and the connector blocks (how to do this using a multimeter can be found using the Forum Advanced Search function and read the topic entries). Start by checking the front nearside - this is the most problematic with UK RH drive vehicles due to water throw up from gutters.

There is the outside chance that on an older vehicle one of the reluctor rings may have become damaged through rusting (especially on the front wheel(s).
This is also discussed on the Forum which can be located using the Search Function. Dont go the reluctor ring route until ABS sensors are totally ruled out.
Thank you. Going to garage on Friday. I’ll let them know of your advice. Any rough prices you reckon it should be?
 

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Does the ABS light come on when you first switch on, then extinguish once it’s completed the self-test?
 

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Does the ABS light come on when you first switch on, then extinguish once it’s completed the self-test?
Doesn’t have a ABS light. No warning light comes on after ignition. Only when driving for like 2-5 mins some days the traction control lights come on.
 

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You should have an ABS light on your dash similar to pic. There's something wrong if you don't.
1843
 

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Discussion Starter #7 (Edited)
You should have an ABS light on your dash similar to pic. There's something wrong if you don't. View attachment 1843
no sorry I mean. The abs light doesn’t come back on after ignition. Never flashes on or off. Only thing which has just happened this morning. Drove for 2 mins and both traction lights came on and car lost all power. When the traction light don’t come on, the Car doesn’t accelerate up hill and never goes over 3k rpm. Have to literally second gear any hill and only does 30mph up hill. Change to third gear on any hill and there’s no acceleration on any grade of a hill. Revs and mph start to decline until back into second gear. I’m guessing the code is a safe guard thing which putting the car into limp mode. But in regards to the abs light , this comes on when put keys in and turn. When engine on, abs light goes off and never comes back on. Only the traction lights sometimes come on when driving, not all the time. When traction lights don’t come on, car has less power. When they come on it loses even more power. In the acceleration and revs. Have to turn car off and back on to get some sort of power but still same problem of less power and Rev. When turn back off and on when traction lights come on. Them lights stay on but goes back to that less power. If car is off for 5 mins and turn back on. The traction lights done come on until sometimes when driving they will and car literally just goes to a standstill when changing gear.
 

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Discussion Starter #10
C0561 72
C0561 74
U0073-00
U100-00
?? The code is c0561-71, is Chevrolet Captiva ltz 2.0

  • DTC C0561 71, 72, 74, and 75
  • The EBCM receives an invalid serial data message/signal from another module which causes the EBCM to deactivate the antilock brake system, traction control and the vehicle stability enhancement system
 

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?? The code is c0561-71, is Chevrolet Captiva ltz 2.0

  • DTC C0561 71, 72, 74, and 75
  • The EBCM receives an invalid serial data message/signal from another module which causes the EBCM to deactivate the antilock brake system, traction control and the vehicle stability enhancement system
That description you have provided is exactly as defined in my earlier post #2.
The clue here is the wording 'another module which causes the EBCM to deactivate etc etc.......'

The most common (but not the only) cause is a defective ABS module affecting sensor signal. Hence the reason I suggested that you have the ABS sensors and/or the connector blocks checked first. The age of your vehicle is such that an ABS module (sensor) failure is possible but as they actually dont have a mechanical moving part which can physically wear out - only an electronic signal - it is much more usual for the 'failure' to be a poor connection hence the reason I have included the connector blocks in my 'check' suggestions.

It is prudent to have this checked on Friday because it can lead to other 'frustrations', namely that the DPF regeneration can be negated by this suspected background ABS fault and then you end up with fault upon fault ie restriction of engine output.

Get your mechanic to check the ABS sensors and connector blocks. Until this is done we cant move on to other possibilities.
.
 
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Yeh thanks. I will update on Friday. Hopefully with the solution you have given.
 

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Zade, I have the same problem and have gotten to the bottom of it. If you scan the Transmission Control Unit, do you also have code P2757?
 

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Here’s what happens in my case. Going up a hill, or on level ground with the car at a certain speed, and at a speed where the Torque Converter Clutch should be locked, mine gets to a point where the TCC is slipping.

The gearbox has speed sensors on the input and output and when the slip gets to a certain limit it puts the gearbox into limp mode. Ie you are limited to 2nd and 4th gear (5 speed AW55-51SE), traction control (DSC) turns off (off and on lights illuminate), cruise control is disabled. Code P2757 (torque converter clutch solenoid stuck off) comes up, P0561-71 comes up due to the invalid serial data from the TCU to the EBCM. U0401 also comes up which relates to the invalid serial data.

like yours, turning the car off and then on resets the system (gearbox limp mode), although it takes two starts for the DSC off and on lights to extinguish.

it took ages to work this out as I was coming at it from the angle Aussie Ed described, thinking the TCC and gearbox limp mode was the symptom not the cause. Have had this confirmed by a auto trans specialist. (My TCC is so worn it doesn’t lock at all apparently).

I’ve done two fluid flushes on mine, which delays the onset of the problem, ie on level ground it won’t happen until > 120kph, but on a hill it will go off earlier. So it’s manageable, but with no TCC lock up, fuel efficiency is not as good as it could be obviously.

Mine is worst case scenario, ie the TCC is worn, but the same thing could also be the TCC solenoid in the valve body (especially in the 6 speed autos), or the electrical circuit between the TCU and the solenoid. Unfortunately all that was confirmed working on mine, and the TCC is at fault.
 

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ACG, A potential option to follow up if ABS isnt the cause. There could of course simply be a corrupted EBCM unit.
So far we have only been able to respond to code C0561-71 because no others have been given. We can only work with what we are told.
We dont know for certain whether Zade's vehicle is Auto or Manual because he hasnt given this information.
I did stress in post#11 that ABS was not the only possible cause and your experience is evidence of this.
I would still explore the ABS route first because it is a relatively easy and relatively inexpensive item to check before embarking on other possibilities.
 

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ACG, A potential option to follow up if ABS isnt the cause. There could of course simply be a corrupted EBCM unit.
So far we have only been able to respond to code C0561-71 because no others have been given. We can only work with what we are told.
We dont know for certain whether Zade's vehicle is Auto or Manual because he hasnt given this information.
I did stress in post#11 that ABS was not the only possible cause and your experience is evidence of this.
I would still explore the ABS route first because it is a relatively easy and relatively inexpensive item to check before embarking on other possibilities.
yep of course the problem could be a number of things. More info is always the key. 👍
 

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Ahh no other code came up and wasn’t that problem it seems. The car Is manual. So the update is. The handbrake was out of line and locked up. Has been re Aligned and fixed. The car is now running with full power and no traction lights come on now. So basically is out of limp mode now. However I have another problem to be fixed which is a part is needed now. The steering wheel rack. Which we don’t know if this vehicle is serotronic or not. Sb10 euc. None of the suppliers have this part so I have to find out firstly if it is sertronic driving steering or not then buy the part for them to fix either from some sort of dealership or looking on eBay. May have to ring a Chev dealership to know if it is serotronic or not. Any ideas?
 

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Ahh no other code came up and wasn’t that problem it seems. The handbrake was out of line and locked up. Has been re Aligned and fixed. The car is now running with full power and no traction lights come on now.
Well I have to say that a misaligned Handbrake was not on my radar ! I've learnt from this.
 
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Haha I know right. Must of put car into safety mode as wheels was not turning together properly or summut? Do you know anything about this rack?
 
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